![]() To achieve this without risks you may have to employ an advanced charger step charger circuit, which can be difficult to build, and might require too many calculations. For example, at the ideal 14.4 V level your battery may be fully charged, but it can be risky to do this using ordinary methods. Because when we apply ideal charging method as discussed in "Wikipedia" or "Battery University" websites, we try to charge the battery at its maximum possible capacity. The big question is, is ideal method of charging a battery essential? The simple answer is NO. So please do not use cheap and untested charger concepts, which may look easy but may harm your battery slowly. Lead acid batteries are expensive, and you will want to ensure that it lasts as long as possible. Because in real world even a new battery won't work with ideal conditions, and as it ages the situation may get even worse. The formula suggests it would ideally require around 10 hours for the battery to get optimally charged at 10 amp rate, but for a real battery this may be around 14 hours for the charging, and 7 hours for the discharging. Where 100 is the Ah level of the battery, 10 is the charging current, T is the time at the 10 amp rate Since charging rate is inversely proportional to the time, we have: The unit Ah is there only to provide us with a benchmark value which can be used for knowing the approximate charge/discharge time of the battery at a stipulated current rate.įor example when the above discussed battery is charged at 10 ampere rate, using the Ah value we can find the full charge time through the following formula: Likewise, if the battery was discharged at 100 ampere rate, the backup time would last not more an hour.īut wait, never try this, as charging/discharging at the full Ah rate can be disastrous for your lead acid battery. ![]() For example, if a 100 Ah battery was charged at 100 ampere rate, it would take 1 hour for the battery to get fully charged. The unit Ah or Ampere-hour in any battery signifies the ideal rate at which the battery would be fully discharged, or fully charged within a span of 1 hour. UPDATE: You may also want to build these simple Charger circuits for 12 V 7 Ah Batterie s, check them out. The 5 useful and high power lead acid battery charger circuits presented below can be used for charging large high current lead acid batteries in the order of 100 to 500 Ah, the design is perfectly automatic and switches of the power to the battery and also itself, once the battery gets fully charged. Lead acid battery charger are specifically designed for charging heavy duty batteries through specialized control circuits. To charge these batteries we specifically need chargers rated to handle high ampere charging levels for long periods of time. Lead acid batteries are normally used for heavy duty operations involving many 100s of amps. All these designs are thoroughly tested and can be used to charge all automotive and SMF batteries up to 100 Ah, and even 500 Ah. This will maintain the battery at optimal voltage with no risk of over-charging.Ī fully automatic set and forget charger for all your smaller lead acid battery types in one small form factor package.This article explains a few lead acid battery charger circuits with automatic over charge, and low discharge cut off. The battery charger will automatically switch to maintenance mode when the battery reaches fully charged voltage. ![]() This process only improves longevity for existing fully functioning batteries. Please note that pulse charging will not rejuvenate a battery that is past its life or is no longer holding charge. This slows down the battery degradation and improves capacity and performance. The charger utelises a pulse algorithm charging cycle that is designed to breakdown sulphation on batteries internal lead plates.
0 Comments
Leave a Reply. |